Communication device

Abstract

The present technology relates to a communication device enabling improvement of communication quality. A communication device includes a control unit configured to, in performing joint reception with a first communication device on a reception signal from one or more second communication devices, perform control of: generating first information indicating likelihood information of the reception signal for every second communication device; generating second information regarding an information amount of the first information that can be stored in a storage unit configured to temporarily store the likelihood information; and transmitting the first information and the second information to the first communication device. The present technology can be applied to, for example, a device constituting a wireless LAN system.

1 . A communication device comprising:
 a control unit configured to perform control of,   in performing joint reception with a first communication device on a reception signal from one or more second communication devices,   generating first information indicating likelihood information of the reception signal for each of the one or more second communication devices,   generating second information regarding an information amount of the first information that can be stored in a storage unit configured to temporarily store the likelihood information, and   transmitting the first information and the second information to the first communication device.   
     
     
         2 . The communication device according to  claim 1 , wherein
 the control unit performs control of
 generating third information including: a number of a codeword targeted by the likelihood information indicated by the first information; and a quantum resolution of the likelihood information indicated by the first information, and 
 transmitting the third information to the first communication device. 
   
     
     
         3 . The communication device according to  claim 2 , wherein
 the control unit performs control of
 generating fourth information indicating a normalization coefficient in the first information, wherein the likelihood information indicated by the first information is normalized likelihood information, and 
 transmitting the fourth information to the first communication device. 
   
     
     
         4 . The communication device according to  claim 1 , wherein
 the control unit executes control of,
 in response to an execution request for joint reception notified from the first communication device, generating fifth information including: information indicating whether or not the joint reception is possible; information indicating the one or more second communication devices in executing the joint reception; information indicating a request scheme related to a calculation scheme of a log-likelihood ratio in the first communication device; and information indicating a frequency resource to be allocated to the one or more second communication devices, and 
 transmitting the fifth information to the first communication device. 
   
     
     
         5 . The communication device according to  claim 1 , wherein
 the control unit performs control of,
 after the joint reception, generating sixth information including: information indicating, to the first communication device, a notification request for likelihood information for the reception signal from any of the one or more second communication devices; information indicating a range of the likelihood information to be requested for each of the one or more second communication devices; and information indicating a requested value of a resolution of the likelihood information, and 
 transmitting the sixth information to the first communication device. 
   
     
     
         6 . The communication device according to  claim 1 , wherein
 the control unit performs control of
 generating seventh information including: information indicating link quality with the first communication device that performs the joint reception; information indicating a number of the first communication devices in the joint reception; and information indicating a frequency resource to be used by the one or more second communication devices to be a target of the joint reception in the joint reception, and 
 transmitting the seventh information to the one or more second communication devices. 
   
     
     
         7 . The communication device according to  claim 1 , wherein
 the control unit performs control of
 generating eighth information including: information indicating whether or not the joint reception is possible; and information indicating a calculation algorithm for the likelihood information, and 
 transmitting the eighth information to the first communication device and the one or more second communication devices. 
   
     
     
         8 . The communication device according to  claim 1 , further comprising:
 a communication unit configured to transmit information by wireless communication.   
     
     
         9 . The communication device according to  claim 1 , wherein
 the communication device and the first communication device are access points, and   the one or more second communication device are communication terminals.   
     
     
         10 . A communication device comprising:
 a control unit configured to perform control of,   in performing joint reception with a first communication device on a reception signal from one or more second communication devices,   generating ninth information including: information indicating a request for the joint reception to the first communication device; information indicating a notification request for an information amount of first information that can be stored in a storage unit of the first communication device in the joint reception; and information indicating a request scheme related to a calculation scheme of a log-likelihood ratio in the first communication device, and   transmitting the ninth information to the first communication device.   
     
     
         11 . The communication device according to  claim 10 , wherein
 the control unit performs control of
 generating tenth information including: information indicating whether or not the joint reception is possible; and information indicating a calculation algorithm for likelihood information, and 
 transmitting the tenth information to the first communication device and the one or more second communication devices. 
   
     
     
         12 . The communication device according to  claim 10 , wherein
 the control unit performs control of
 generating eleventh information including: 
   
       information indicating link quality with the first communication device that performs the joint reception; information indicating a number of the first communication devices in the joint reception; and information indicating a frequency resource to be used by the one or more second communication devices to be a target of the joint reception in the joint reception, and
 transmitting the eleventh information to the first communication device. 
 
     
     
         13 . The communication device according to  claim 10 , further comprising:
 a communication unit configured to transmit information by wireless communication.   
     
     
         14 . The communication device according to  claim 10 , wherein
 the communication device and the first communication device are access points, and   the one or more second communication devices are communication terminals.   
     
     
         15 . A communication device that is a second communication device, the communication device comprising:
 a control unit configured to perform control of,   in transmitting a transmission signal to, as a destination, a plurality of first communication devices that operates jointly with each other,   generating twelfth information indicating that joint reception is requested to the first communication devices, and   transmitting the twelfth information to the first communication devices.   
     
     
         16 . The communication device according to  claim 15 , wherein
 the control unit performs control of
 generating thirteenth information including: 
   
       information indicating a number of the first communication devices to be a destination and indicating the first communication devices; and information indicating a frequency resource to be used for each of the first communication devices as a destination, and
 transmitting the thirteenth information to the first communication devices. 
 
     
     
         17 . The communication device according to  claim 15 , wherein
 the control unit performs control of
 individually allocating codeword information to a frequency resource to be used for the plurality of first communication devices that operates jointly with each other, and 
 transmitting the codeword information allocated to the frequency resource. 
   
     
     
         18 . The communication device according to  claim 15 , wherein
 the control unit executes control of
 generating fourteenth information indicating whether or not transmission signals can be simultaneously transmitted to the plurality of first communication devices capable of executing the joint reception, and 
 transmitting the fourteenth information to the first communication devices. 
   
     
     
         19 . The communication device according to  claim 15 , further comprising:
 a communication unit configured to transmit information by wireless communication.   
     
     
         20 . The communication device according to  claim 15 , wherein
 the first communication devices are access points, and   the second communication device is a communication terminal.